The present disclosure provides methods of treating subjects having psoriasis, and methods of identifying subjects having an increased risk of developing psoriasis.

The present invention concerns the treatment of prostate cancer and particularly castration resistant prostate cancer (CRPC). The Heat Shock Protein Hsp27, a chaperone protein, has been long demonstrated as a driver of Castration Resistance Prostate Cancer (CRPC). In the light of identification of the molecular mechanisms, the inventor determined that the Probable ATP-dependent RNA helicase DDX5 is an interactor of Hsp27 and DDX5's expression is modulated by Hsp27. They confirmed that DDX5 overexpression is correlated to the aggressiveness of the tumor, to the CRPC emergency and to the biochemical recurrence risk. They also developed DDX5-targeting antisense oligonucleotides for research purpose and clinical application. Thus, the invention relates to an inhibitor of DDX5 wherein said inhibitor reduces the expression and/or activity of DDX5 in a subject in need thereof and targets the gene or the mRNA of DDX5.

The present disclosure provides a promoter having at least the core components of a duck retinoic acid-inducible gene I (RIG-I) promoter, as well as expression constructs having the duck RIG-I promoter operably linked to a gene product-encoding nucleic acid (e.g., an avian RIG-I protein), and recombinant host cells containing the duck RIG-I promoter, e.g., in such expression constructs. The present disclosure also provide animals genetically modified to have a gene encoding a duck RIG-I promoter operably linked to a gene product-encoding nucleic acid (e.g., an avian RIG-I protein, such as a duck RIG-I protein).

Disclosed herein are compositions and methods for the expression of a gene of interest. The disclosed methods may employ codon-optimization and introduction of non-endogenous restriction sites for efficient expression of a gene. The methods may further employ introduction of a gene variant of interest, such that the disclosed methods, compositions, and systems may be used to determine the significance of a variant of interest. Further disclosed are compositions, systems, and methods for the characterization of gene variants, and other mutations that may impact the function of the protein of interest.

Compositions and methods for inhibiting cancer cell metastasis and inflammation are disclosed. The methods generally involve administering to a subject a composition containing an agent that selectively inhibits the binding of p68 RNA helicase to calmodulin (CaM) in the cells.

The present disclosure concerns methods and compositions for inhibiting replication of viruses in mammalian cells. In some cases the virus can be African Swine Fever virus, or related viruses. The methods described herein can make use of programmable nucleases.

The disclosure provides a method of determining whether a subject is infected with a virus, comprising (1) testing whether a protein comprising an amino acid sequence of at least a part of the helicase domain of MDA5 protein and having a molecular weight of about 60 kDa is detected in a sample obtained from the subject; and (2) determining the subject is infected with the virus when the protein was detected. The disclosure also provides a monoclonal antibody capable of binding to the protein.

Compositions and methods for making and using engineered cells, such as, engineered myeloid cells that express a chimeric fusion protein that has a binding domain capable to binding surface molecules on target cells such as diseased cells.

Methods and compositions of altering a eukaryotic cell are described including providing to the eukaryotic cell a guide DNA sequence complementary to a target nucleic acid sequence, providing to the eukaryotic cell an Ago enzyme or a nuclease null Ago protein that interacts with the guide DNA sequence for DNA-guided gene editing and regulation of the target nucleic acid sequence in a site specific manner.

A method of preparing a ddx27-deletion zebrafish mutant, including: determining a target of ddx27 knockout on a sixth exon of the ddx27 in a zebrafish and designing a gRNA sequence; using primers T7-ddx27-sfd and tracr rev for PCR amplification with a pUC19-gRNA scaffold plasmid as a template; purifying and transcribing the PCR product obtained in vitro to produce gRNA; introducing the gRNA and a Cas9 protein into the zebrafish; and culturing the zebrafish to obtain a zebrafish ddx27 mutant of stable inheritance. In addition, the application also discloses a phenotype of the ddx27-deletion zebrafish mutant, which plays an important role in investigating the biological function.